Subversion Repositories openrisc

//*****************************************************************************
//
// uart.h - Defines and Macros for the UART.
//
// Copyright (c) 2005,2006 Luminary Micro, Inc.  All rights reserved.
//
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's Stellaris Family of microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  Any use in violation
// of the foregoing restrictions may subject the user to criminal sanctions
// under applicable laws, as well as to civil liability for the breach of the
// terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 635 of the Stellaris Driver Library.
//
//*****************************************************************************
 
#ifndef __UART_H__
#define __UART_H__
 
#ifdef __cplusplus
extern "C"
{
#endif
 
//*****************************************************************************
//
// Values that can be passed to UARTIntEnable, UARTIntDisable, and UARTIntClear
// as the ulIntFlags parameter, and returned from UARTIntStatus.
//
//*****************************************************************************
#define UART_INT_OE             0x400       // Overrun Error Interrupt Mask
#define UART_INT_BE             0x200       // Break Error Interrupt Mask
#define UART_INT_PE             0x100       // Parity Error Interrupt Mask
#define UART_INT_FE             0x080       // Framing Error Interrupt Mask
#define UART_INT_RT             0x040       // Receive Timeout Interrupt Mask
#define UART_INT_TX             0x020       // Transmit Interrupt Mask
#define UART_INT_RX             0x010       // Receive Interrupt Mask
 
//*****************************************************************************
//
// Values that can be passed to UARTConfigSet as the ulConfig parameter and
// returned by UARTConfigGet in the pulConfig parameter.  Additionally, the
// UART_CONFIG_PAR_* subset can be passed to UARTParityModeSet as the ulParity
// parameter, and are returned by UARTParityModeGet.
//
//*****************************************************************************
#define UART_CONFIG_WLEN_8      0x00000060  // 8 bit data
#define UART_CONFIG_WLEN_7      0x00000040  // 7 bit data
#define UART_CONFIG_WLEN_6      0x00000020  // 6 bit data
#define UART_CONFIG_WLEN_5      0x00000000  // 5 bit data
#define UART_CONFIG_STOP_ONE    0x00000000  // One stop bit
#define UART_CONFIG_STOP_TWO    0x00000008  // Two stop bits
#define UART_CONFIG_PAR_NONE    0x00000000  // No parity
#define UART_CONFIG_PAR_EVEN    0x00000006  // Even parity
#define UART_CONFIG_PAR_ODD     0x00000002  // Odd parity
#define UART_CONFIG_PAR_ONE     0x00000086  // Parity bit is one
#define UART_CONFIG_PAR_ZERO    0x00000082  // Parity bit is zero
 
//*****************************************************************************
//
// API Function prototypes
//
//*****************************************************************************
extern void UARTParityModeSet(unsigned long ulBase, unsigned long ulParity);
extern unsigned long UARTParityModeGet(unsigned long ulBase);
extern void UARTConfigSet(unsigned long ulBase, unsigned long ulBaud,
                          unsigned long ulConfig);
extern void UARTConfigGet(unsigned long ulBase, unsigned long *pulBaud,
                          unsigned long *pulConfig);
extern void UARTEnable(unsigned long ulBase);
extern void UARTDisable(unsigned long ulBase);
extern tBoolean UARTCharsAvail(unsigned long ulBase);
extern tBoolean UARTSpaceAvail(unsigned long ulBase);
extern long UARTCharNonBlockingGet(unsigned long ulBase);
extern long UARTCharGet(unsigned long ulBase);
extern tBoolean UARTCharNonBlockingPut(unsigned long ulBase,
                                       unsigned char ucData);
extern void UARTCharPut(unsigned long ulBase, unsigned char ucData);
extern void UARTBreakCtl(unsigned long ulBase, tBoolean bBreakState);
extern void UARTIntRegister(unsigned long ulBase, void(*pfnHandler)(void));
extern void UARTIntUnregister(unsigned long ulBase);
extern void UARTIntEnable(unsigned long ulBase, unsigned long ulIntFlags);
extern void UARTIntDisable(unsigned long ulBase, unsigned long ulIntFlags);
extern unsigned long UARTIntStatus(unsigned long ulBase, tBoolean bMasked);
extern void UARTIntClear(unsigned long ulBase, unsigned long ulIntFlags);
extern void UARTConfigSetExpClk(unsigned long ulBase, unsigned long ulUARTClk,
                                unsigned long ulBaud, unsigned long ulConfig);
 
#ifdef __cplusplus
}
#endif
 
#endif //  __UART_H__